[1]王友国 刘沁雨.多阈值系统中高斯混合噪声改善信息的传输[J].计算机技术与发展,2011,(04):120-122.
　WANG You-guo,LIU Qin-yu.Gaussian Mixture Noise to Improve Information Transmission in Multi-threshold System[J].,2011,(04):120-122.
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多阈值系统中高斯混合噪声改善信息的传输()
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《计算机技术与发展》[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2011年04期
页码:
120-122
栏目:
智能、算法、系统工程
出版日期:
1900-01-01

文章信息/Info

Title:
Gaussian Mixture Noise to Improve Information Transmission in Multi-threshold System
文章编号:
1673-629X（2011）04-0120-03
作者:
王友国 刘沁雨
南京邮电大学理学院
Author(s):
WANG You-guo; LIU Qin-yu
College of Science,Nanjing University of Posts and Telecommunications
关键词:
互信息; 随机共振; 阈上随机共振; 高斯混合噪声
Keywords:
mutual information;  stochastic resonance;  supra-threshold stochastic resonance;  Gaussian mixture noise
分类号:
TP391
文献标志码:
A
摘要:
讨论高斯混合噪声下多阈值系统中的随机共振现象。对于单峰噪声,当输入信号在阈上时,互信息随着噪声的增强单调递减,噪声总是不利于信息的传输;当信号在阈下时,互信息随着噪声的增强先递增然后再递减,适量的噪声能改善信息传输,随机共振现象存在。对于双峰噪声,信号在阈下或阈上,噪声有时能够改善信息的传输,随机共振和阈上随机共振存在。这些结果说明多阈值系统中噪声改善信息的传输依赖于噪声类型,拓广了随机共振和阈上随机共振在多元信息传输中的应用
Abstract:
Stochastic resonance in multi-threshold systems is studied for Gaussian mixture noises.For the single-peak Gaussian mixture noise,when the input signal is supra-threshold,mutual information monotonically decrease as the noise intensity increases,noise always deteriorate information transmission.When the input signal is sub-threshold,mutual information first increase and then decline as the noise intensity increases,some noise can improve information transmission,stochastic resonance（SR） exists.For Bimodal Gaussian mixture noise,when the signal is sub-threshold or supra-threshold,noises sometimes can also improve information transmission,SR and supra-threshold stochastic resonance（SSR） exist.These results indicate that noise in multi-threshold systems to improve information transmission depends on the noise types,and extend the application of SR and SSR in the multi-dimensional information transmission

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备注/Memo

备注/Memo:
江苏省自然科学基金（08KJB510012）王友国（1968-），男，江苏淮安人，教授，硕士生导师，研究方向为信号与信息处理，应用数学
更新日期/Last Update: 1900-01-01